Results 41 to 50 of about 178 (131)

Investigation of Atmospheric Conditions Associated with a Storm Surge in the South-West of Iran

Atmosphere, 2021
Severe thunderstorms are often accompanied by strong vertical air currents, temporary wind gusts, and heavy rainfall. The development of this atmospheric phenomenon over tropical shallow water zones, such as bays, can lead to intensification of ...
Esmaeil Abbasi, Hana Etemadi, Joseph M. Smoak, Iman Rousta, Haraldur Olafsson, Piotr Baranowski, Jaromir Krzyszczak   +6 more
doaj   +1 more source

Application of the teaching–learning-based optimization algorithm to an analytical model of thunderstorm outflows to analyze the variability of the downburst kinematic and geometric parameters [PDF]

Natural Hazards and Earth System Sciences
Downbursts winds, characterized by strong, localized downdrafts and subsequent horizontal straight-line winds, present a significant risk to civil structures.
A. Xhelaj, M. Burlando
doaj   +1 more source

The Effect of Variation in the Interlayer Spacing of a Double‐Layer Truss Bridge on the Bridge Deck Wind Environment

Advances in Civil Engineering, Volume 2026, Issue 1, 2026.
Double‐layer truss bridges are widely used in long‐span crossings due to their high load‐carrying capacity and structural efficiency. However, their complex truss configurations significantly alter the wind field around the deck, posing potential challenges to driving safety and comfort.
Kunping Chen, Hongrui Zhang, Haochao Wang, Jinxiang Zhang, Meng Gao   +4 more
wiley   +1 more source

Aerodynamic characteristics of the train traversing the thunderstorm downburst wind field

Advances in Wind Engineering
To investigate the aerodynamic characteristics of the high-speed train as it traverses the thunderstorm downburst wind, a special test device was used to simulate the thunderstorm downburst wind field.
Fei Zhang, Peng Hu, Fei Chen, Zhongbo Wang   +3 more
doaj   +1 more source

Horizontal Anisotropy of Turbulent Fluctuations in Surface and Air Temperatures Over a Flat, Homogeneous Surface

Journal of Geophysical Research: Atmospheres, Volume 130, Issue 24, 28 December 2025.
Abstract Longitudinal Lx $\left({L}_{x}\right)$ and lateral Ly $\left({L}_{y}\right)$ integral length scales describe the characteristic horizontal structure of energy‐containing turbulent structures in a flow. The ratio Lx/Ly ${L}_{x}/{L}_{y}$ describes the anisotropy of the structures where Lx/Ly>1 ${L}_{x}/{L}_{y} > 1$ indicates structures elongated
Rainer Hilland, Andreas Christen
wiley   +1 more source

Simulation and analysis of the mechanism of a downburst process

暴雨灾害, 2022
Using conventional surface observations, Doppler radar imagery and products of the RMAPS model, a gust caused by a downburst event occurred on July 9, 2017, in Shunping of Hebei Province was studied.
Lei YU, Zhiluan LIAN, Qiufen XIONG, Heyue DING   +3 more
doaj   +1 more source

The impact of catastrophic forest blowdown on large wood loads in headwater streams

Earth Surface Processes and Landforms, Volume 50, Issue 15, December 2025.
Catastrophic forest blowdown across parts of southeastern Australia in June 2021 substantially increased large wood loads in headwater streams, delivering 88% of the measured wood volume. Wood loads did not correlate to blowdown density but instead were significantly influenced by valley morphology, such that wider valley bottoms had higher wood loads.
Julianne Scamardo, Ian Rutherfurd
wiley   +1 more source

Evaluating the Impact of the Planetary Boundary Layer on Dynamics of Urban Thunderstorms Over the Eastern Indian Region

Meteorological Applications, Volume 32, Issue 6, November/December 2025.
Higher Turbulent Kinetic Energy in YSU indicates strong turbulence in the boundary layer (thick black curved arrows) resulting in the exchange of turbulent fluxes to the upper atmosphere through strong updrafts (Red arrows), making the atmosphere saturated, aiding the realistic prediction of rainfall associated with thunderstorms compared to MYJ and ...
Kesireddy Lakshman, Yerni Srinivas Nekkali, Raghu Nadimpalli, Sahidul Islam, Krishna K. Osuri   +4 more
wiley   +1 more source

An observational study of a circular gust front over the Yangtze Delta, China

Weather, Volume 80, Issue 11, Page 387-394, November 2025.
Concentric gust fronts are formed when a thunderstorm’s downdraft reaches the ground and the outflow from the cold pool spreads uniformly outwards into the surrounding warm and humid air mass. Observational evidence presented here show the case of narrow‐band echoes forming a ring around a thunderstorm.
Wenjie Zhou, Wendong Hu, Jianhua Dai, Puyuan Du, Lu Lu, Yongkai Zhang, Yanqiong Hao   +6 more
wiley   +1 more source

Simulation of the Flow Field Characteristics of a Downburst [PDF]

, 2007
Wind load on a structure is usually investigated in turbulent boundary layer flow simulated in a boundary layer wind tunnel. However, the strong wind that causes damages on structures is usually transient wind, for instance, downburst wind, whose statistics are different with the general atmospheric boundary layer.
S. Cao, Y. Zhao, H. Ozono, Y. Tamura, A. Kareem, Z. Duan   +5 more
openaire   +1 more source